For the person who is looking for a complete Header-back dual exhaust system with an aggressive tone. This system is mandrel bent for maximum performance and includes specially selected mufflers. American Thunder systems deliver a moderate to aggressive interior and exterior tone and are suited to the enthusiast who wants their performance to be heard. Like all Flowmaster systems, the benefits include improved throttle response, power and mileage. Designed for an easy fit, these systems include all necessary parts and hardware for easy installation.

More Flowmaster in store, even if you don't see it here! Give us a call toll free: 1-877-471-6700 or visit one of our Speed Shop locations.

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Performance Improvements Speed Shops Limited - Canadian Prices, No Duties, 365 Day Returns, Free Shipping over $99. Trouble placing an order? You can
Send us an Email or call us toll free at 1-877-471-6700.